[zenity] Rework README as README.md

[Logan Rathbone <larathbone src gnome org>]

commit 3df081286e91da3e567e7eed64e88f3d148f3daa
Author: Logan Rathbone <poprocks gmail com>
Date:   Fri Jul 1 13:59:49 2022 -0400

    Rework README as README.md
    
    Remove some of the quirky "zen" tone.

 README    | 12 ------------
 README.md | 23 +++++++++++++++++++++++
 2 files changed, 23 insertions(+), 12 deletions(-)
---
diff --git a/README.md b/README.md
new file mode 100644
index 00000000..57d8a184
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# Zenity
+
+This is Zenity - a rewrite of gdialog, the GNOME port of dialog
+which allows you to display dialog boxes from the commandline
+and shell scripts.
+
+This software is licensed under the LGPL.
+
+Zenity is part of the GNOME Extra Apps family and is not a core
+GNOME application.
+
+## Dependencies
+
+* gtk+-3.16
+
+## Optional Dependencies
+
+* libnotify (for desktop notification support)
+* webkit2gtk-4.1 (for HTML support)
+
+Please see the meson.build file for minimal versions required
+for optional dependencies, and meson_options.txt for the build
+options to enable these features if desired.